 | | Journal (article/letter/editorial) | | OCCURRENCE OF ILSEMANNITE E. D. Gor.onrwc, Saratoga, Wyorning. Introtluction Ilsemannite, MoOg'SOr SHzO...at the fluorspar mine operated by the Western Fluorspar Corporation, in northern Jackson County, Colorado...informed that the material had been identified as ilsemannite by the late Professor Wm. E. Ford. More recently...after a few days'exposure on the mine dump, has become ilsemannite-incrusted, although no indication...interest. GeologyoJ the Occurrence Workings at the mine referred to above are confined to drifts and stopes |  | Van Alstine, R. E., Worl, R.G., Heyl, A.V., Trace, R.D., Parker, R.L., Griffitts, W.R., Sainsbury, C.L., Cathcart, J.B. (1976) Geology and resources of fluorine in the United States. Professional Paper 933. US Geological Survey doi:10.3133/pp933 | Report (issue) | | 1. 2. 3. 4. 5. A sbestos ore Lead ore, Balmat mine, N . Y. Chromite-chromium ore, Washington Zinc ore...Peninsula, Mich. 10. Porphyry molybdenum ore, Colorado 11 . Zinc ore, Edwards , N . Y. 12. Manganese...Survey in accordance with the provisions of the Mining and Minerals Policy Act of 1970 (Public Law 91-631...discovered or not currently profitable to mine. The mining of mineral deposits, once they are discovered............. Nevada-western Utah-southeastern Oregon-southeastern California-western Arizona, by R. G. |
|
